Hit the button at the refinery's base to summon Hyperion troops. Then kill them.

10

Dead Air

Kill DJ Hunter Hellquist while his portable radio is switched off.

To accomplish this, get behind Hunter Hellquist (easiest if he hasn't detected you) and point your reticule toward the button on the radio transmitter on his back. Turn the transmitter off before attacking/killing him to complete the challenge.

10

Cult of the Vault

Discover the two hidden Vault Symbols.

1

Bloodshot Ramparts

Cult of the Vault

Discover the Hidden Vault Symbol

1

The Last Place You Look

Find all five missing car keys in Bloodshot Ramparts.

10

The Not-So-Phantom Tollbooth

Pay the toll.

1

Bloodshot Stronghold

Cut 'Em No Slack

Defeat the spinter group in their assigned order.

5

Give It a Whirl

Kill an enemy by knocking him into the whirlpool.

5

Eff Yo' Couch

Jump on all 5 couches in the Bloodshot Dam.

1

Bloodshot Memories

Find the lost recordings of the Bloodshot Clan

1

Cult of the Vault

Discover the two hidden Vault Symbols.

5

Caustic Caverns

Ever Blow Bubbles...?

Use the corrosive bubbles to reach the broken rail.

1

Can't Feel A Thing

Stand in the corrosive ooze for thirty seconds without falling into Fight for Your Life.

1

Harchek's Revenge

Kill Blue before any of his leg crystals grow back.

10

Cult of the Vault

Discover the two hidden Vault Symbols.

5

End of the Line

Cult of the Vault

Discover the hidden Vault Symbol.

1

Master of All He Surveys

Kill Willhelm without destroying any of his surveyors.

10

Eridium Blight

Pipe Dreaming

Walk on top of the Eridium pipeline.

To accomplish this, go toward the NE area of the map, just a bit south of the entrance to Sawtooth Cauldron. You will find a pillar holding up part of the pipeline. On the North side of this is a tank you can jump onto, and from there, you can jump your way up to the top of the pipeline. Run along the top of the pipeline South until you reach a break in the pipe. You will see a separated section of pipe below you with a loot chest on it. Jump to this section of the pipe to complete the challenge.

5

Can You Hear Me Now

Destroy all 4 communication dishes.

1

'Twas Slag Killed the Beast

Kill King Mong while he is slagged.

1

Cult of the Vault

Discover the three hidden Vault Symbols.

1

Tie Clip

Cut Donkey Mong's tie without any players being hit by his barrels.

5

Save the Turrets

Complete the fight at the gate before the Loaders destroy the tower turrets.

10

Bring Out the Big Guns

Destroy all five Hyperion tower turrets.

1

Vault Hunter vs. The Volcano

Get up close and personal with the Volcano.

1

Fink's Slaughterhouse

Cult of the Vault

Discover the hidden Vault Symbol

1

Friendship Gulag

Cult of the Vault

Discover the hidden Vault Symbol.

1

In the Middle of the Night

After night falls, alert a guard tower to your presence.

1

Frostburn Canyon

Praise Be to Scorch

Kill Scorch without damaging his minions.

5

Totems of Fire

Ignite all the hanging totems.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

1

Burning Sensation

Find Incinerator Clayton's chronicles of the Firehawk.

1

Hayter's Folly

Playing Chicken in my Sleep

Kill Sandman and The Big Sleep before killing any of their minions.

4

Master of my Domain

Survey Sandman's domain through his telescope.

4

Wet Reward

Find the secret area beyond the Crystalisk territory.

4

Cult of the Vault

Discover the two hidden Vault Symbols.

4

Hero's Pass

When Nature Calls

Discover where engineers do their business.

1

Enviromental Protection

Disable the grinder arm control panels.

1

Cult of the Vault

Discover the two hidden Vault Symbols.

5

Lynchwood

That's Impossible, Even for a Computer

Land a grenade in the refinery's exhaust part.

5

Duel of Death

Duel on the Main Street train tracks.

1

Do or Die

Find out why Axton came to Pandora.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

10

Last Train to Nowhere

Kill the bandit riding the five o'clock train

10

Look Ma, No Hands

Shoot a skag rider off his skag.

5

Natural Selection Annex

Cult of the Vault

Discover the hidden Vault Symbol.

1

Oasis

Cult of the Vault

Discover the four hidden Vault Symbols.

4

I Ain't Afraid of Heights

Find the 2 treasure chests on the Oasis rooftops.

4

Horrid's Hideaway

Find Horrid's stashed hideaway

4

Opportunity

Shame the Foreman

Kill Foreman Jasper without letting him construct any turrets.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

5

Opportunity Knocks

Find the lost Hyperion audio recordings in Opportunity

5

Down With Big, Handsome Brother

Destroy the security cameras located throughout Opportunity

5

Top o' the World

Explore your way to three rooftops.

5

Ore Chasm

Cult of the Vault

Discover the hidden Vault Symbol

1

Sanctuary

Jackpot!

Get three Vault Symbols or Triple Eridium Bars on the Lucky Shot slot machine.

5

Cult of the Vault

Discover the five hidden Vault Symbols.

5

Rise of the Crimson Raiders

Uncover the history of Crimson Raiders.

5

Sanctuary Hole

Cult of the Vault

Discover the hidden Vault Symbol.

1

Down the Rabbit Hole

Jump in the big hole.

1

Sugar Shack

Find the secret bandit shack.

1

Sawtooth Cauldron

Happy Camper

Find Avie's hidden campsite.

1

Race to the Top

Get to the Buzzard Nest within two minutes of entering Sawtooth Cauldron.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

10

Haiku Hitman

Find out why Zero came to Pandora.

1

Southern Shelf

Fireproof

Kill Flynt without any players taking damage from his dragon breath.

5

Make Boom Go Boom

Kill Boom and Bewm without any players taking a direct shot from Big Bertha.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

5

Southern Shelf - Bay

Vault Hunter on Wire

Get to Blackburn Cave via tightrope.

1

Midge-Mong Has No Friends

Kill Midgemong and his rider before they summon backup.

5

Cult of the Vault

Discover the two hidden Vault Symbols.

5

I Can See Your Corpse from Here!

Find all four telescopes in Southern Shelf Bay.

5

Southpaw Steam & Power

Cult of the Vault

Discover the three hidden Vault Symbols.

5

Boss Run

Kill all four assassins within ten minutes.

1

Terramorphous Peak

Terramorphous the Not-So-Invincible

Defeat Terramorphous.

10

Cult of the Vault

Discover the two hidden Vault Symbols.

5

The Bunker

BNK-3R Buster

Destroy BNK-3R without destroying any of his auto cannons.

5

Cult of the Vault.

Discover the hidden Vault Symbol.

5

The Dust

The Van Is Damned

Find and loot the roaming Cara-Van.

5

I've Got a Crush on You

Have a buddy crush you in the car crusher.

1

Cult of the Vault.

Discover the three hidden Vault Symbols.

10

If You're Not First, You're Last

Complete the Hodunk Speedway within the time limit.

5

Dust to Dust

Uncover the history behind the Zaford/Hodunk feud.

5

The Fridge

Cult of the Vault

Discover the two hidden Vault Symbols.

1

It's Off to Hell We Go

Kill all of Laney's midget companions before killing Laney herself.

1

Stiff Competition

Do not kill any Midget Boners before killing Smash-Head.

5

Fairst of Them All

Kill Laney before any of her midget companions die.

1

The Rakk Knight

Find Rakkman's audio diary.

1

Trapped Rat

Find the rat frozen in time.

10

The Highlands

Cult of the Vault

Discover the hidden Vault Symbol.

5

Winds of the Highlands

Find all eight windsocks.

1

Failure to Communicate

Find and destroy all four Hyperion communication towers.

Hint: Look for the round buildings with antenna on top and shoot the small round object at the very top of each of the four towers.

10

The Holy Spirits.

Cult of the Vault

Discover the hidden Vault Symbol.

1

The Rustyards

Crow's Nest

Reach the top of the scrapyard ship mast.

4

Cult of the Vault

Discover the two hidden Vault Symbols.

4

My Main Squeeze

Squeeze five of Herbert's stuffed Scarlett dolls.

4

Thousand Cuts

Cult of the Vault

Discover the two hidden Vault Symbols.

5

Portait of the Gunzerker as a Young Man

Find out why Salvador came to Pandora.

5

A Grave Matter

Smash all the tombstones in Slab Town

1

Slab UHF

Activate the radio tower atop Slab Town

10

Three Horns - Divide

Man's Best Friends

Kill Boll without hurting any of his poor snow skags.

5

Cult of the Vault

Discover the three hidden Vault Symbols.

1

Three Horns - Valley

Cult of the Vault

Discover the three hidden Vault Symbols.

5

This Ain't My First Rodeo

Explore your way to the top of the Happy Pig Motel Sign.

Just south of the Happy Pig Motel's giant pig sign, there is a volcanic vent in the ground. Stand on the edge of this vent facing the pig sign until the vent sends you flying into the air, and attempt to aim your landing so that you end up on top of the pig to complete this challenge.

5

Tundra Express

What's Yours Is Mine

Disable all of Tiny Tina's pink mines.

5

Positive Reinforcements

Find and turn on the three alarms that summon bandit reinforcements.

5

King of the Buzzard World

Explore your way to the roofs of Buzzard Academy.

5

Bug Off

Kill Madam Van Bartlesby without any players taking damage from her bug bombs.